Air Pressure Switch, Application Air Filtration, Furnace Control, Humidity Detection and Control, Commercial HVAC, Residential HVAC, Contact Form SPDT, Electrical Connection Type Screw Terminals, Electrical Rating 1 A Pilot Duty @ 120 VA, 5 A @ 120 to 277V AC, 5 A @ 28V DC, Housing Material Stainless Steel, Housing Type Conduit Box, Includes Adjustment Tool, Mounting Hardware, Input Voltage 120V AC, 277V AC, 28V DC, Maximum Differential Pressure Setting 0.02 in wc. This item has been restricted from sale in the following state (s): []